Sight for firearms.



No. $46,639A

PATENTBD MAR. 12, 1907. J. WINDRIDGE. ,slrGHT` ma PIRBARMS. APPLICATION FILED MAY 23, 1906.

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JAMES WINDRIDGE, OF MIDDLEFIELD, CONNECTICUT, ASSIGNOR TO THE LYMAN GUN SIGHT CORPORATION, OF MIDDLEFIELD, CONNECTICUT, A CORPORATION OF CONNECTICUT.

SIGHT FOR FIREARNIS.

fatented March 12, 1907.

Application filed May 28,1906. Serial No. 319.068.

T0 a/ZZ whom, t mor/y concern:

` Be it known that I, JAMES WINDRIDGE, a citizen of the United States, residing at Middlefield, in the county of Middlesex and State of Connecticut, have invented certain new and useful Improvements in Sights for Firearms, of which the following is a specification.

My invention relates to a rear folding sight for firearms, or th'at class in which the sight is mounted rearwardly of the gun-barrel and by a hinge connection with the base adapted to be turned down from .the sighting position into more compact relation with the stock of the firearm when not required to be used.

The object of the invention is to provide locking means for rigidly securing the sight in the elevated or sighting position 5 and the improvement resides in the novel combination and arrangement, with the pivotal mechanism, of a locking-piece for engaging the folding part of the sight and in the construction of parts, as hereinafter more fully described and claimed.

In the accompanying drawing, forming a part-of this specification, Figure 1 is a side elevation of a rear folding sight embodying my improvements, and Fig. 2 is a rear elevation or the same. Fig. 3 is a side elevation of the base. Fig. 4 is a view similar to Fig. 1, except that the base is shown in central longitudinal vertical section. Figs. 5 and 6 are vertical cross-sectional views on the line a; of Fig. 1, respectively showing the locking mechanism in locked and unlocked positions. Fig. 7 is a cross-section on the line :z: x of Fig. 4 with the hinge-pivot removed. Fig. 8 is a plan view of the locking-piece. Fig. 9 is a side view of the same, and Fig. 10 is a sectional view of a modification.

Referring to the drawings, A designates the base of the sight, adapted for attachment by means of screws to the curved part of the stock of the firearm rearwardly of the barrel in the ordinary position and manner not requiring specific description. The base is provided with the usual hinge-ears t b, between which the tongue of the folding part or joint D of the sight is fitted and hinged by a pivot e through the parts. The sight is yieldingly held in the vertical or sighting position (shown in Figs. l, 3,' and 4) by means of a spring-detent e', secured by a screw e2 to the lower side of the base and adapted to engage vthe counterbore, as shown in Fig. 3.

or enter a detent depression or notch e on the joint, as shown in Fig. 4. Said detent, some form of which is common to sights of this class, locates and retains the joint in sighting position, but permits it to be readily swung back and folded down flat upon the base by a moderate amount of force applied to the joint to cam the detent out of the notch e3. These parts of the sight are usual in the art and here require no further description.

The hinge pivot e is provided with a knurled head j at one end and is screwthreaded at the other end j". One ofthe ears b of the base has its pivotal perforation f2 screw-threaded to receive said threaded end of the pivot-screw. An annular counter bore 9 is recessed in the outer face of the opposite ear b around the pivot perforation g, and two diametrically opposite .radial slots h are extended inwardly through the ear from An annular washer or ring i is received in said counterbore-recess of the ear b and provided with the spurs i, fitting and adapted to project slightly through the radial slots h into the space between the ears of the base, as shown in Fig. 5. The screw-pivot c is passed through said ring i and has a shoulder' i2 under its head, adapted to impinge against the ring and force it inwardly in its seat as the pivot is screwed to place.

In the face of the tongue d of the joint D are two diametrically opposite radial notches d2, placed in position to coincide with the radial slots of the ear b when the sight is in the elevated position shown in Fig. 4. In operation when the sight is elevated to the sighting position determined by the engagement of the detent e with the notch e3 of the joint the rounded or bluntly-pointed ends of the spurs i, seated in said slots h, will be in position to enter into engagement with said notches d2, as shown in Figs. 6 and 7. Then if the screwpivot is screwed forward a distance corresponding to the depth of the notches d2 the ring i will be forced inwardly and the spurs i interlocked with the notches, as shown in Fig. 5, thereby securing the sight rigidly in said elevated position. Reverse or backward movement of the screw-pivot will release the ring i and permit the sight to be folded down, ,the spurs i in such action being readily cammed out from the notches l d2, owing to the aforesaid configuration of their points and that of their receivingnotches.

Instead of the form of screw-pivot described a modiiication may be employed in which the end or' the bolt 1 is passed through the ear or the base and screw-threaded to receive an adjusting-nut j, bearing against the base for drawing the bolt lengthwise in its seat7 as shown in Fig. 10. In this construction the nut is turned instead of the bolt, and the ring t" will therefore require to be tightly forcedupon the bolt'or otherwise rigidly secured thereto. The operation of saidmodi` ied construction is essentially the same as that o' the mechanism rst described.

1. Ina'sight forirearms, the combination of abase, a folding part-or joint hinged 'there-- to, a non-yielding locking device that is movablelaterally or crosswise of the sight and means to hold said device immovabljT in locking position'.

2. In a sight for firearms,V the combination cfa-base, a rolding part or joint hinged thereto, anon-yielding locking member movable' parallel with the direction of the axis of movement of the oint and interlocking said parts, and means iior moving the locking member into such interlocking engagement and immovably holding it in such' engagement.

3. Ina sight for firearms, the combination of a base, a folding part or joint, a pivotal connection between said parts, anon-yielding locking member movable in one or' said parts parallel with the direction of the axis of such connection, and into and out of engagement with the other one of saidparts and means to hold said member immovabljT in suchv engagement.

4. kIn a sight for iirearms, the combination of a base, a folding part or j oint, a laterallymovable screw or bolt pivotally connecting said parts, anon-yielding locking member in one of the parts and adapted to interlock j withthe other part, and means for moving the locking member into such interlocking engagement by lengthwise motion of the screw or bolt and hold it immovably in such engagement.

5. In a sight for irearms, the combination of a part provided with a pair of hinge-ears, a part hinged between said earsI one or' said ears having a slot or slots opening through to the part between the ears, and a locking device having a spur reaching through the slot and "engaging the part-pivoted between the ears.

6. In asight lfor firearms, the combination oi'a'part'provided with a pair of hinge-ears, a p( rt hinged between said ears, one or the ears having'a slot or slots reaching through to the part between them, a locking device having a spurreaching through the slot and engaging the part between the ears, and means to immovably hold said device in engagement with said part.

7. In a'sight'for firearms, the combination of'a part'provided n ith a pair of hinge-ears,` a part between said ears, a pivot hinging the said parts together, and a ring seated in one oiisaid ears and having a spur or spurs to engage slotsand depressions in one of said ears and the partbetween them.

8.y In a sight for firearms, the combination of apart provided with hinge-ears, a folding part between said ears, a screw pivotalljT connectingsaid parts, and a locking-ring seated and guided in one o said ears between the head of the screw and the iolding part', and having a spur or spurs, said ear and folding p art having spur-engaging slots and depressions.

In testimony whereorc I have signed'my name to this specification in the presence of two subscribing witnesses.

JAMES VVINDRIDGE.

Witnesses I'sAnnLL L. Coon, ALFRED H. AUGUR. 

